Pump



May L 1934- c. F. BRANDENBERGER 1,957,007

PUMP

Filed Jan. 25, 1935 Patented May l, 1934 srrss PATENT GFFICE 2 Claims.

This invention aims to provide a novel pump construction of the cylinder type, one object of the invention being to provide a device of the class described, adapted to be used in deep wells,

and so constructed that the pipe can be drained without diii'iculty. A further object of the invention is to provide novel means for holding the liner in the cylinder. Another object of the invention is to improve the construction of the foot valve.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

With the above and other objects in view,

which will appear as the description proceeds, the invention resides in the combination and arrangement oi parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed, may be made within the scope of what is claimed, without departing from the spirit of the invention.

In the accompanying drawing:

Fig. 1 shows, in vertical longitudinal section, a device constructed in accordance with the invention, parts being in section;

Fig. 2 is a cross section on the line 2 2 of Fig. l;

Fig. 3 is a cross section on the line 33 of Fig. 1.

The numeral 1 marks a tubular foot piece, with a wrench head 2, by which it may be threaded conveniently about the upper end of the intake pipe 3. A threaded coupling 4 joins the foot piece 1 to the lower end of a cylinder 5. A brass liner 6 fits closely but removably in the cylinder 5, the liner having an outwardly extended annular ilange 7, bound tightly between the lower end of the cylinder 5 and the upper surface of the foot piece. This is a good feature, because thereby the liner 6 is clamped rigidly in place, and because it keeps the water from getting 455 between the liner and the cylinder 5, and circulating between the liner and the cylinder, when the pump is working.

The oot piece 1 has an upwardly extended, reduced seat 8, the bore 9 of which communi- Cates with an enlarged chamber 10 in the foot piece, the chamber being of a little larger diameter than the intake pipe 3. The upper end of the cylinder 5 is joined by a threaded cou pling 1l to the outlet pipe 12. An annular ange 155 14 on the upper end of the liner 6 overlaps and (Cl. 10B-180) engages the upper end of the cylinder 5, to aid in holding the liner in place, the flange 14 having a rounded nare that guides the piston 15 into the liner, when the piston is lowered from the position of Fig. l. GG

The lower foot valve 16 has longitudinal groovesl 17 on its outer surface, spaced at equal distances apart, and considerably wider than the intervening ridges 18. There is, therefore, plenty of space for the water to pass, as the foot 1 Valve moves downwardly until its packing disk 19 seats on the upper end of the part 8 of the foot piece 1. A securing device, such as a screw 20, holds the packing disk 19 in a recess 21 in the foot valve 16, and the recess forms a de- 7G pending skirt 22. When the disk 19 is seated on the upper end of the part 8 of the foot piece 1, the skirt 22 extends downwardly around the said part 8, at the upper end thereof, and keeps sand and the like from lodging between the l disk 19 and the part 8. Leakage at the foot valve thus is prevented.

The foot valve 16 has ears 23 at its upper end, and between them is received the iiattened lower end 24 of a connecter, such as a rod 25. A pivot 80 element 26 in the ears 23 connects the flattened lower end of the part 25 to the ears 23 of the foot valve 16.

The piston 15 may be constructed in various ways, Figs. 7 and 9 of my Patent No. 1,321,709, of 85 November 11, 1919, affording some suggestions in that respect. The piston 15 may include an inverted cup-shaped top 27, in which the lower end of an actuating means, specically a pump rod 28, is secured. rlhe top 27 of the piston has open- 90 ings 29, and the part 27 is threaded on and secured to an upper short tube 30 that has a port 31 in its upper end. This port at times is closed by an upper check valve 32, provided with a stem 33 that extends down into the tube 30, through 95 the port 31.

A coupling 34 is threaded on the lower end of the short tube 30, and is threaded on the upper end of a short lower tube 35. An abutment member 36 is threaded on the lower end or the tube 30 100 and has a cross opening 37, communicating with the tube 35, and forming a hanger 38 at the lower end of the piston 15. The rod 25 has sliding movement in the hanger 38, a head 39 on the rod cooperating with the hanger to connect the rod and the foot valve 16 with the piston. The tube 35 is surrounded by a packing ring 40, of leather or the like, surmounted by a clamping ring 41. On top of the clamping ring 41 is apacking ring 42, clamped in place by the coupling 34, the coupling being bulged as at 43, to expand the ring 42, the packing ring 40 being expanded by the clamping ring 41. Although the piston structure has been deiined with considerable particularity, it will be understood that this structure may be departed from, without departing in a corresponding degree from the spirit of the invention.

In the ordinary working of the pump, as a pump, the piston 15 does not occupy the position of Fig. 1, within the coupling 11, but has reciprocation in the liner 6 of the cylinder 5. Moreover, although the foot valve 16 is connected at 25-39 with the piston 15, the foot valve can open and close, responsive to the flow of water, independently of its connection with the piston 15. On the upstroke, the piston 15, working in the liner 6 of the cylinder 5, sucks water through the intake pipe 3 and the passages 10 and 9 of the foot piece 1, the foot valve 16 moving upwardly, to an open position. On the downstroke of the piston 15, in the cylinder` 5, the lower check valve or foot valve 16 closes, the water is forced through the opening 37, through the tubes 35 and 30, the check valve 32 unseating, and the water passing through the port 31 and through the openings 29 of the piston, into the cylinder 5, the coupling ll, and the pipe 12, above the piston 15. On the upstroke, the water that is above the piston 15 of course is elevated in the usual way.

When the operator wishes to drain the line of piping, he pulls up the entire structure into the position of Fig. l, the piston 15 being then in the enlarged space formed by the coupling l1. A bypass thus is created, so that the Water can run down to the bottom of the cylinder 5, and a drainage at the lower end of the cylinder is etiected, because the rod 25 raises the foot valve 16 until the bore 9 of the foot piece l is opened, as shown in Fig. 1.

The device will be found to be of peculiar utility when it is desired to drain the tubing of a well, particularly a deep well. A novel means is supplied for holding the liner 6 in place, and, as hereinbefore explained, the foot valve construction is such that sand cannot find its way for lodgement between the seat 8 of the foot piece 1 and the packing disk 19 that is carried by the foot valve 16.

When it is desired to remove the piston 15, it can be pulled up, and when it is pulled up, the foot valve 16 will be removed also, the head 39 on the rod 25 engaging the hanger 38 of the piston 15.

Having thus described the invention, what is claimed is:

1. In a pump, a cylinder, a foot piece secured to the lower end of the cylinder and having a reduced, upwardly-extended, tubular valve seat provided with a smooth external surface, a foot valve in the cylinder and provided in its low-er end with a deep recess having a smooth internal wall, a packing member secured in the top of the recess and engageable with the upper end of the valve seat, the recess forming a skirt which extends downwardly below the packing member, the skirt surrounding the valve seat throughout a portion of the height of the valve seat which is sucient to prevent sand and the like from lodging between the packing member and the upper end of the valve seat and causing leakage at the foot Valve, a piston slidable in the cylinder, a connection attached to the foot valve, the piston being slidable on the connection, and interengageable elements on the connection and on the piston, whereby the piston and the foot valve may be withdrawn as one piece, and whereby the foot valve may be reciprocated with respect to the valve seat, in the operation of the pump.

2. In a pump, a cylinder, a foot piece extended under the lower end of the cylinder, a coupling joining the foot piece to the cylinder, a liner in the cylinder and having an outwardly extended flange surrounded by the coupling, and bound between the lower end of the cylinder and the upper surface of the foot piece, the foot piece having a reduced upwardly extended tubular valve seat provided with a smooth external surface, a foot valve in the liner and provided in its lower end with a deep recess having a smooth internal wall, a packing member secured in the top of the recess and engageable with the upper end of the valve seat, the recess forming a skirt which extends downwardly below the packing member, the skirt surrounding the valve seat throughout a portion of the height of the valve seat which is sucient to prevent sand and the like from lodging between the packing member and the upper end of the valve seat and causing leakage at the foot valve, a piston slidable in the liner, a connection attached to the foot valve, the piston being slidable on the connection, and interengaging elements on the connection and on the piston whereby the piston and the foot valve may be withdrawn as one piece, and whereby the foot valve may be reciprocated with respect to the valve seat, in the operation of the pump.

CARL F. BRANDENBERGER. 

